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HOURLY PRODUCTION <br />Hauling Capacity : <br />Scraper Payload (weigt <br />Basis : <br />Material weight : 2,900 pounds/LCY <br />Material description , <br />Decomposed rock - 50% Rock, 50% Earth <br />Rated payload : 55,000 pounds <br />Payload capacity: 18.97 LCY <br />sheet 2 of 2 <br />Scraper Bowl (volume) Basis : <br />Struck volume : 18.00 LCY <br />Heaped volume : 23.00 LCY <br />Average volume : 20.50 LCY <br />Adjusted capacity: 18.97 LCY <br />' hourly production reflects volume per scraper pair on push-pull models <br />Cycle Time : Job Condition Corrections : Site altitude (ft.) : 4,850 <br /> Scraper Push dozer Source <br />Scraper loading time 0.90 minutes Altitude adj.: 1.000 NA (Cat HB) <br />Maneuver and spread time : 0.70 minutes Job efficiency : 0.830 NA (Cat HB) <br />* load time per scraper pair on push-pull models Net correction : 0.830 NA <br />Travel time : <br />Road condition description :Rutted dirt, little maintenance, no water, 2" tire penetration <br />Hard Rnuta <br />Seg. # Haul distance (feet) Grade (%) Roll. res. (%) Total res. (%) Velocity (fpm) Travel time (min.)** <br />1 Z850 1.20 5.00 6.20 1098 2.67 <br />2 Z050 0.00 5.00 5.00 1292 1.61 <br />3 900 4.40 5.00 9.40 715 1.19 <br />4 1,075 1.70 5.00 6.70 944 1.16 <br />5 1,300 2.20 5.00 7.20 944 1.38 <br />6 450 2.00 5.00 7.00 944 0.48 <br /> <br /> <br />Haul time : 8.48 minutes <br />Return route : <br />1 450 -2.00 5.00 3.00 2666 0.37 <br />2 1,300 -2.20 5.00 2.80 2666 0.49 <br />3 1,075 -1.70 5.00 3.30 2666 0.40 <br />4 900 -4.40 5.00 0.60 2710 0.33 <br />5 Z050 0.00 5.00 5.00 2359 0.83 <br />6 2,850 -1.20 5.00 3.80 2562 1.12 <br /> <br /> <br />** travel time for each segment is adjusted for acceleration/deceleration. Return time : 3.55 minutes <br />table velocities are max. attainable per total resistance shown, not average <br />Total scraper team cycle time (load + haul + maneuver and spread + return) : 13.62 minutes <br />Unadjusted unit production/hour : 83.53 LCY/hour *** Adjusted for job conditions : 69.33 LCY/hour <br />Optimal number of scrapers per push dozer : NA Selected number of scrapers : 1 scraper(s) <br />Adjusted single scraper team (unit) hourly production : 69.33 LCY/hour <br />Adjusted multiple scraper team (fleet) hourly production : 277.32 LCY/hour <br /> <br />JOB TIME AND COST <br />Fleet size : 4 Team(s) Total job time : 45.44 Hours <br />Unit cost : $3.119 /LCY Total job cost : $39,299 <br />